All lab markers

Heart & metabolic

HDL Cholesterol

Cholesterol being carried away from the arteries — higher is generally protective. Lower results are the ones to watch. A common adult reference interval is 40–100 mg/dL.

Typical adult range

Reference interval
40–100 mg/dL
Often-cited tighter window
55–90 mg/dL

Higher is generally protective. Your own lab's printed range is the one that applies to your result.

What commonly moves it

  • Insulin resistanceDrives small dense LDL, triglycerides, and inflammatory tone.

These are commonly described physiological relationships, shared for education. They are not a diagnosis and cannot account for your medications, history, or symptoms — discuss your results with a licensed clinician.

Watching HDL Cholesterol over time?

Dose Compass charts each draw, flags meaningful moves, and helps you prepare questions for your clinician.

Start tracking